21804828

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{397}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 53491200

約数和(自身を除く): 31686372

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 199, 276, 397, 398, 597, 794, 796, 1191, 1194, 1588, 2382, 2388, 4577, 4764, 9131, 9154, 13731, 18262, 18308, 27393, 27462, 36524, 54786, 54924, 79003, 109572, 158006, 237009, 316012, 474018, 948036, 1817069, 3634138, 5451207, 7268276, 10902414, 21804828]

約数ペア:

[(1, 21804828), (2, 10902414), (3, 7268276), (4, 5451207), (6, 3634138), (12, 1817069), (23, 948036), (46, 474018), (69, 316012), (92, 237009), (138, 158006), (199, 109572), (276, 79003), (397, 54924), (398, 54786), (597, 36524), (794, 27462), (796, 27393), (1191, 18308), (1194, 18262), (1588, 13731), (2382, 9154), (2388, 9131), (4577, 4764)]